With the Nix Mini Color Sensor, colors can be determined on almost all surfaces. Simply hold it on the desired position and it blocks every outside light to display accurate color values on the smartphone (RGB, CMYK, CIELAB, ACES and more).
The free Companion App also offers a color visualizer, which allows you to display scanned colors in your pictures, for example to find a new wall color. Additionally, complementary colors are displayed.
One battery charge lasts for 3000 color scans.